A pet tag holder (20) supports from a pet collar (42) a pet tag (40) having a hole. The pet tag holder (20) comprises a flexible, resilient body (22) including a major front wall (24), an opposed major rear wall (26), side edge walls (28) interconnecting the front and rear walls (24, 26), a top edge wall (30), and a bottom edge wall (32). The top and bottom edge walls are continuous with the side edge walls (28) and interconnect the front and rear walls (24, 26). The body (22) defines a hollow sleeve having an interior cavity (33) adapted for receiving and enclosing at least one pet tag (40) and a slot (34) for inserting the tag (40) into the sleeve.